1. Put all ingredients in high-powered blender (like Thermomix) or food processor and process until totally smooth. You will probably have to scrape things down a few times as the mixture will seem quite crumbly. Adjust sweetener to taste at this point.

2. Spread the mixture in an 8×8 pan, pressing down firmly.

3. Place in refrigerator for at least one hour or until firm. Slice into squares and serve.

4. Store in the refrigerator or in the freezer for longer storage or for a frozen fudgy treat.